PING使用了（）的Echo请求与Echo回答报文。A、ICMPB、ARPC、SNMPD、IP
PING使用了（）的Echo请求与Echo回答报文。
- A、ICMP
- B、ARP
- C、SNMP
- D、IP
相关考题：
When you use the ping command to send ICMP messages across a network, what's the most common request/reply pair you'll see? (Select one answer choice)A．Echo request and Echo replyB．ICMP hold and ICMP sendC．ICMP request and ICMP replyD．Echo off and Echo onE．None of the above
源主机ping 目的设备时，如果网络工作正常，则目的设备在接收到该报文后，将会向源主机回应ICMP( )报文。 A.Echo RequestB.Echo ReplyC.TTL-ExceededD.Port-Unreachable
源主机ping目的设备时，如果网络工作正常，则目的设备在接收到该报文后，将会向源主机回应ICMP（）报文。A、Echo RequestB、Echo ReplyC、TTL-ExceededD、Port-Unreachable
Which configuration would make an IP SLA probe use a precedence value of 5？（）A、ip sla 1 icmp-echo 1.1.1.1 tos 160B、ip sla 1 icmp-echo 1.1.1.1 tos 20C、ip sla 1 icmp-echo 1.1.1.1 precedence 5D、ip sla 1 icmp-echo 1.1.1.1 dscp 20
ICMP报文的前四个字节是统一的格式，共有三个字段，其中类型字段占一个字节，下面类型字段值与ICMP报文类型关系对应正确的有（）A、0 Echo（回送）回答B、3 目的站不可达C、5 改变路由（Redirect）D、11 数据报的时间超过E、13 时间戳（Timestamp）请求F、8 Echo请求
PING命令使用了哪种ICMP消息？（）A、RedirectB、Source quenchC、Echo request和Echo replyD、Destination unreachable
PING命令使用了哪种ICMP消息（）。A、RedirectB、Source quenchC、Echo request和Echor eplyD、Destination unreachable。
What happens when you issue the ping 172.19.102.2 count 5 command?（）A、ICMP echo requests are sent to 172.19.102.2 in five-millisecond intervals.B、ICMP echo requests are sent to 172.19.102.2 until five packets are dropped.C、ICMP echo requests are sent to 172.19.102.2 five times.D、ICMP echo requests are sent continuously to 172.19.102.2 for five seconds.
防止系统对ping请求做出回应，正确的命令是：（）。A、echo0/proc/sys/net/ipv4/icmp_ehco_ignore_allB、echo0/proc/sys/net/ipv4/tcp_syncookiesC、echo1/proc/sys/net/ipv4/icmp_echo_ignore_allD、echo1/proc/sys/net/ipv4/tcp_syncookies
单选题PING使用了（）的Echo请求与Echo回答报文。AICMPBARPCSNMPDIP